Emergency disposal simulation training device for medium leakage

Abstract

The utility model relates to a medium leakage emergency disposal simulation training device, which comprises a simulation storage box and a control cabinet used for controlling the simulation storage box, the simulation storage box comprises a shell, an upper storage box bottom and a lower storage box top, the upper storage box bottom and the lower storage box top are arranged in the shell, and a gap is arranged between the upper storage box bottom and the lower storage box top. Medium leakage point positions simulate common leakage point positions of a real storage box and are located at the bottom of the upper storage box, personnel can enter the simulation storage box to conduct simulation training of emergency disposal on the leakage point positions at the bottom of the upper storage box, and medium leakage can be deployed, controlled and adjusted through the control cabinet. Therefore, people who are not familiar with the emergency disposal operation can carry out simulation exercise.

Description

Technical Field

[0001] The utility model relates to the chemical industry field, and particularly relates to an emergency disposal simulation training device for medium leakage. Background Art

[0002] A certain liquid belongs to dangerous chemicals and is generally stored in a storage tank. During the storage and use processes, due to reasons such as equipment aging and damage, different degrees of leakage often occur. If not properly handled, secondary disasters such as explosion, fire, poisoning, chemical burns, and asphyxiation will occur.

[0003] The small leakage of this liquid is divided into two types: seepage and drip leakage.

[0004] The phenomenon of seepage is as follows: there are obvious medium traces on the surface of the equipment, and after wiping off the traces, they will appear again after a few minutes. If the leaked substance is the vapor of a certain liquid, bubbles will be generated when inspected with soapy water.

[0005] The phenomenon of drip leakage is as follows: the medium leaks from the equipment in the shape of water droplets and slowly flows down. After wiping off the traces, water droplet-shaped leaked medium will reappear after 5 minutes. If the leaked substance is the vapor of a certain liquid, the bubbles will be in series when inspected with soapy water.

[0006] Although the small leakage is small, it will also cause the concentration of toxic substances in the working space to increase. If not dealt with in time, it is likely to develop into medium leakage and large leakage. It is necessary to design a disposal practice device for this situation for simulation operation practice to improve the students' emergency disposal ability. Content of the Utility Model

[0007] In order to solve the technical problems existing in the above-mentioned prior art, the utility model aims to propose an emergency disposal simulation training device for medium leakage, which can simulate the scenario of small leakage of the medium for students to practice.

[0008] To achieve the above object of the utility model, an embodiment of the utility model provides an emergency disposal simulation training device for medium leakage, which includes a simulation storage tank and a control cabinet for controlling the simulation storage tank; the simulation storage tank includes a shell and an upper storage tank bottom and a lower storage tank top arranged inside the shell, there is a gap between the upper storage tank bottom and the lower storage tank top, and the medium leakage points include a first point on the end face of the upper storage tank bottom, a second point on the weld of the end face of the upper storage tank bottom, a third point on the pipeline at the bottom of the upper storage tank, and a fourth point at the flange on the pipeline at the bottom of the upper storage tank; the shape of the simulation storage tank is a sector with an angle of 90°.

[0009] Furthermore, the shapes of the upper storage tank bottom and the lower storage tank top match the shape of the sector and the shape of the end of the real storage tank.

[0010] Further, the housing includes: a front panel, which is an arc-shaped plate, and the radian thereof matches the radian of the fan-shaped body; side panels, which are flat plates, and the two side panels are sequentially spliced with the front panel to form the sides of the fan-shaped body; a top cover and a base; the front panel, the side panels, the top cover and the base form a relatively enclosed space inside, the bottom of the upper storage tank is located at the top of the space, the top of the lower storage tank is located at the bottom of the space, and a manhole is provided on the front panel.

[0011] Further, on the base, a fan-shaped platform is further provided between the top of the lower storage tank and the front panel, and the entrance of the manhole is above the fan-shaped platform.

[0012] Further, a plurality of liquid leakage holes are provided on the fan-shaped platform.

[0013] Further, a gas cylinder, a liquid tank and connecting pipelines are provided inside the control cabinet, and the connecting pipelines connect the gas cylinder, the liquid tank and are also connected to the top of the upper storage tank through the connecting holes on the housing.

[0014] Further, a practice mode button and a practice status indicator light are provided on the operation panel of the control cabinet.

[0015] Further, a smoke simulation system and a lighting simulation system are further provided inside the simulation storage tank, and the smoke simulation system and the lighting simulation system are controlled by the control cabinet and are used to simulate the smoke and lighting in a real leakage scenario.

[0016] Further, the control cabinet is used to automatically adjust the medium flow rate input into the simulation storage tank so that the liquid level in the simulation storage tank is maintained at a fixed height, and the principle of the automatic adjustment is:

[0017]

[0018] Among them, U(t) represents the quantity to be adjusted at time t, and K P represents the coefficient of proportionality P in the PID closed-loop control, T I represents the coefficient of integral I in the PID closed-loop control, T D represents the coefficient of differential D in the PID closed-loop control, and err(t) represents the error between time t and time t - 1.

[0019] Further, the control cabinet is also used to identify whether the simulation storage tank is in a leakage state or a non-leakage state, and the principle is:

[0020] The liquid level height of the simulation storage tank is measured in real time through a liquid level gauge, and the liquid level height at time t is:

[0021] H t =H 0+∫U(t)

[0022] Among them, H 0 is the initial liquid level height;

[0023] The medium flow rate input into the simulation storage tank is measured by a flow meter, and the liquid level height H converted from the total flow rate measured by the flow meter is f as follows:

[0024] H f = F / S

[0025] where F is the total volume of the medium flow rate and S is the bottom area of the simulation storage tank;

[0026] When in a non-leakage state, H f = 0, there is:

[0027] L = H t -H t-1

[0028] Then when in a leakage state, H f ≠0, the leakage amount is:

[0029]

[0030] where H t-1 is the liquid level height measured by the liquid level gauge at time t-1.

[0031] The emergency disposal simulation training device for medium leakage in the embodiment of the present utility model can simulate the scenario of small medium leakage for emergency disposal practice. At the same time, the state of medium leakage can be self-adjusted by the control cabinet to achieve full-process automatic control. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 is a schematic structural diagram of the emergency disposal simulation training device for medium leakage in the embodiment of the present utility model;

[0034] Figure 2 is a schematic diagram of the leakage point of the simulation storage tank in the embodiment of the present utility model;

[0035] Figure 3 is a schematic structural diagram of the simulation storage tank in the embodiment of the present utility model from the front perspective;

[0036] Figure 4 It is a schematic structural view of the simulation storage tank according to an embodiment of the present utility model from a side perspective;

[0037] Figure 5 It is a schematic structural view of the fan-shaped platform on the simulation storage tank according to an embodiment of the present utility model;

[0038] Figure 6 It is a schematic internal structure view of the control cabinet according to an embodiment of the present utility model;

[0039] Figure 7 It is a schematic control principle view of the control cabinet according to an embodiment of the present utility model;

[0040] Figure 8 It is a schematic principle view of the automatic adjustment and working state indication of the control cabinet according to an embodiment of the present utility model.

[0041] Explanation of reference numerals:

[0042] Simulation storage tank 1, housing 10, bottom of upper storage tank 11, top of lower storage tank 12, front panel 101, side panel 102, top cover 103, base 104, manhole 1011, fan-shaped platform 1041;

[0043] Control cabinet 2, gas cylinder 21, liquid tank 22, connecting pipeline 23. Specific embodiments

[0044] The description of the embodiments in this specification should be combined with the corresponding drawings, and the drawings should be part of the complete specification. In the drawings, the shape or thickness of the embodiments may be enlarged and simplified or conveniently marked. Furthermore, each part of the structure in the drawings will be described separately. It should be noted that the elements not shown or not described in words in the drawings are in the forms known to those of ordinary skill in the art.

[0045] Any reference to directions and orientations in the description of the embodiments herein is for convenience of description only and should not be construed as any limitation on the protection scope of the present utility model. The following description of the preferred embodiments involves combinations of features that may exist independently or in combination. The present utility model is not particularly limited to the preferred embodiments. The scope of the present utility model is defined by the claims.

[0046] This embodiment takes small leakage as an example. Small leakage generally occurs at the self-sealing parts of the equipment, defective parts such as sand holes in the equipment, etc. The designed small leakage simulation point is located at the bottom of the upper storage tank of the product. There are tiny sand holes at the bottom of the storage tank. For example, the designed scenario can be that the weld at the bottom of the storage tank suddenly leaks when injecting liquid. The specific location is selected at the bottom of the storage tank; this position is located in the intermediate section of the upper storage tank of the product, which is an important equipment for storing a certain liquid in the product. If a leakage failure occurs in this equipment, it will have a direct impact on the entire operation task, and it is a representative failure point.

[0047] As Figure 1 shown, an emergency disposal simulation training device for medium leakage according to an embodiment of the present invention includes a simulation storage tank 1 and a control cabinet 2 for controlling the simulation storage tank 1. The simulation storage tank 1 includes a housing 10 and an upper storage tank bottom 11 and a lower storage tank top 12 disposed inside the housing 10. Among them, the scenario simulated by the upper storage tank bottom 11 and the lower storage tank top 12 is a scenario where two upper and lower storage tanks are vertically arranged, which is common in engineering. In fact, in engineering, generally, multiple (possibly more than two) storage tanks are arranged one above the other in sequence. In this embodiment, any two adjacent upper and lower storage tanks are selected for description. On this basis, it is easy to understand that the upper storage tank bottom 11 simulates the bottom of the upper storage tank, and the lower storage tank top 12 simulates the top of the lower storage tank. There is a gap between the upper storage tank bottom 11 and the lower storage tank top 12 (in actual engineering, there is also a gap between the upper and lower storage tanks).

[0048] As Figure 2 shown, in actual engineering, there are usually four medium leakage points, namely the first point a on the end face of the upper storage tank bottom 11 (the end face of the storage tank bottom is generally spherical, and the first point a is located on this spherical surface), the second point b on the weld of the end face of the upper storage tank bottom 11 (there are several welds on the end face of the storage tank bottom, that is, the above spherical surface), the third point c on the pipeline of the upper storage tank bottom 11 (this pipeline is connected from the above bottom spherical surface to other pipelines outside), and the fourth point d at the flange on the pipeline of the upper storage tank bottom 11. The control cabinet 2 of this embodiment can simulate any one of the above four points by inputting medium fluid to the upper storage tank bottom 11. In addition, it should be noted that only the first point a to the fourth point d are marked in Figure 2 and other structures are not marked. For other structures, please refer to Figure 3 ( Figure 2 and Figure 3 the structures shown are exactly the same).

[0049] As Figure 3As shown, in this embodiment, the shape of the simulation storage tank 1 is a sector body, which can reduce the floor area of the simulation storage tank 1. Although the ends (top and bottom) of the actual storage tank are spherical bodies, the leakage points (the first point a and the second point b) are only located at a certain place on the spherical body. Therefore, it is not necessary to simulate the entire spherical body at the end of the storage tank. The spherical body is cut into a sector body, and the leakage points are simulated on the sector body, and the effect is the same. In particular, a sector body with an angle of 90° is preferably used, which is more conducive to production and installation (for example, it can be installed at the corner of two walls). The shape of the bottom 11 of the upper storage tank and the top 12 of the lower storage tank matches the shape of the sector body and the shape of the end of the real storage tank. Specifically, the bottom 11 of the upper storage tank and the bottom 12 of the lower storage tank should originally be a spherical body with the same shape and size as the end of the real storage tank. However, in order to reduce the floor area, the bottom 11 of the upper storage tank and the bottom 12 of the lower storage tank are set as a part of the spherical body, that is, a sector body. In addition, the distance between the bottom 11 of the upper storage tank and the bottom 12 of the lower storage tank should also be the same as the distance between the upper and lower storage tanks in the project. At the same time, pipelines (for example, the pipelines where the third point c and the fourth point d are located) are usually provided at the ends of the storage tank to connect with other external pipelines (not shown in the figure and well-known to those skilled in the art), and these settings should be the same as those of the real storage tank.

[0050] As Figure 3 and Figure 4 shown, in this embodiment, the housing 10 includes: a front panel 101, which is an arc-shaped plate, and the radian is the radian of the sector body; side panels 102, which are flat plates, and the side panels 102 and the front panel 101 are spliced in sequence to form the side of the sector body. It is easy to understand that there are two side panels 102; a top cover 103 and a base 104. The top cover 103 is the structure that closes the top of the housing 10 and can prevent dust and the like from falling in. The base 104 is at the bottom of the housing 10, and the top 12 of the lower storage tank is carried on the base 104. At the same time, the front panel 101 and the side panels 102 are also connected to the base 104. For example, the edge of the base 104 can have a card slot (not shown), so that the front panel 101 and the side panels 102 can be connected to the base 104 by clamping; the front panel 101, the side panels 102, the top cover 103 and the base 104 form an internally relatively airtight space. The bottom 11 of the upper storage tank is located at the top of this internal space, and the top 12 of the lower storage tank is located at the bottom of this internal space. There is a manhole 1011 on the front panel 101. Preferably, the manhole 1011 is located at the center of the front panel 101. Since the housing 10 is a relatively airtight space surrounded by the front panel 101, the side panels 102, the top cover 103 and the base 104, it is necessary to enter and exit the housing 10 through the manhole 1011. On the base 104, a certain gap needs to be reserved between the bottom 11 of the upper storage tank and the front panel 101 so that people can stand after entering through the manhole 1011. Preferably, refer toFigure 5 , a sector platform 1041 is provided at the top 12 of the lower storage tank and the front panel 101. Above the sector platform 1041 is the entrance of the manhole 1011. In addition, a number of liquid leakage holes may be provided on the sector platform 1041 (see Figure 5 ). In this way, when the simulated leaked medium fluid leaks from the bottom 11 of the upper storage tank, the medium fluid generally first flows downward to the top 12 of the lower storage tank, then slides down along the surface of the top 12 of the lower storage tank to the sector platform 1041, and is then discharged through the liquid leakage holes on the sector platform 1041. Further, below the liquid leakage holes of the sector platform 1041, a collection device or a discharge device may be provided for collecting or discharging the leaked medium fluid to avoid excessive accumulation and affecting the personnel on the sector platform 1041.

[0051] As Figure 6 shown, in this embodiment, the control cabinet 2 has a gas cylinder 21, a liquid tank 22 and a connecting pipeline 23. The connecting pipeline 23 connects the gas cylinder 21 and the liquid tank 22 and is also connected to the bottom 11 of the upper storage tank through a connecting hole (not shown) on the housing 10. Solenoid valves, regulating valves, pressure reducing valves, etc. are also provided on the connecting pipeline 23. The operation panel of the control cabinet 2 has practice mode buttons (such as small leakage mode, medium leakage mode, large leakage mode of the medium, and the first point a to the fourth point d described in this embodiment are all small leaks), and practice status indicator lights.

[0052] As Figure 7 shown, in this embodiment, the principle of controlling the small leakage of the medium in the simulated storage tank 1 by the control cabinet 2 is as follows: the simulated liquid flow comes from the liquid tank 22 inside the control cabinet 2. Before simulation, the simulated leakage medium is filled into the liquid tank 22, and the filled simulated medium accounts for about half of the volume of the liquid tank. The compressed gas in the gas cylinder 21 is used to pressurize the liquid tank 22, and the compressed gas in the liquid tank 22 provides power for the simulated medium. When the solenoid valve at the leakage point is opened, the simulated medium starts to leak from the designed leakage point, and the leakage size can be adjusted by the pressurizing pressure of the simulated medium storage tank and the opening degree of the regulating valve. The simulation system finally presents the effect of small leakage under the joint adjustment of the storage tank air pressure, the regulating valve opening degree, and the leakage point hole. The liquid flow control is realized through the solenoid valve and the regulating valve system. The regulating valve is used to regulate the leakage speed of the simulated medium, and the solenoid valve is used to control the on-off of the medium to perform process switching. While the simulated medium leaks at the leakage point, the simulated pressure gauge of the storage tank is connected to the storage tank to display the simulated pressure.

[0053] As Figure 8As shown, in this embodiment, when simulating medium leakage through the control cabinet 2, the control cabinet 2 needs to automatically adjust the medium flow rate input into the simulation storage tank 1 to keep the liquid level in the simulation storage tank 1 at a fixed height, so as to maintain the leakage state (for example, when simulating a small leak, if the medium flow rate is not controlled, it will gradually become a medium leak and a large leak. Therefore, the leakage state needs to be maintained). The principle of automatic adjustment adopted in this embodiment is PID control based on the proportion (P), integral (I), and derivative (D) of the deviation, which can be expressed as:

[0054]

[0055] where U(t) represents the quantity to be adjusted at time t, and K P represents the coefficient of proportion P in the PID closed-loop control, T I represents the coefficient of integral I in the PID closed-loop control, T D represents the coefficient of derivative D in the PID closed-loop control, and err(t) represents the error between time t and time t - 1.

[0056] As Figure 8 shown, in this embodiment, the control cabinet 2 is also used to identify whether the simulation storage tank 1 is in a leakage state or a non-leakage state, and display the current state through the exercise status indicator light on the operation panel. The principle is as follows:

[0057] The liquid level height of the simulation storage tank 1 is measured in real time through a liquid level gauge. The liquid level height at time t is:

[0058] H t = H 0 + ∫U(t)

[0059] where H 0 is the initial liquid level height;

[0060] The medium flow rate input into the simulation storage tank 1 is measured through a flow meter. The liquid level height H f converted from the total flow rate measured by the flow meter is:

[0061] H f = F / S

[0062] where F is the total volume of the medium flow rate, and S is the bottom area of the simulation storage tank 1;

[0063] When in the non-leakage state, H f = 0, there is:

[0064] L = H t - H t-1

[0065] Then when in the leakage state, H f ≠ 0, the leakage amount is:

[0066]

[0067] Among them, H t-1 is the liquid level height measured by the liquid level gauge at time t - 1.

[0068] In summary, for the emergency disposal simulation training device for medium leakage in the embodiments of the present utility model, the storage tank is selected as the simulation operation object. The appearance of the simulation device and the position of the leakage point are the same as those of the actual equipment, ensuring that the operation actions, operation phenomena, and operation results remain unchanged. At the same time, the state of the medium leakage can be self - adjusted through the control cabinet to achieve full - process automatic control. The disposal after a leakage fault occurs at the leakage point includes processes such as bandaging the signal box, emergency pump shutdown, pressure relief, bandaging and drainage, leak plugging and defect elimination, decontamination, and re - gas inspection. According to the leakage phenomenon and the disposal process, the simulated liquid flow and control system of the leakage point are designed. To enhance the immersion of the practice, the control of smoke and lighting effects can also be added, and the leakage simulation of a certain liquid can be realized, thus creating a highly immersive practice environment.

[0069] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A medium leakage emergency response simulation training device, characterized in that: It comprises a simulated tank (1) and a control cabinet (2) for controlling the simulated tank (1); The simulated tank (1) comprises a shell (10) and an upper tank bottom (11) and a lower tank top (12) arranged in the shell (10); there is a gap between the upper tank bottom (11) and the lower tank top (12); medium leakage points comprise a first point located on the end surface of the upper tank bottom (11), a second point located on the weld of the end surface of the upper tank bottom (11), a third point located on the pipeline of the upper tank bottom (11), and a fourth point located at the flange on the pipeline of the upper tank bottom (11); the simulated tank (1) is in the shape of a sector with an angle of 90°.

2. The medium leakage emergency handling simulation training device according to claim 1 is characterized in that: The shapes of the upper tank bottom (11) and the lower tank top (12) match the shapes of the sector and the end of the real tank.

3. The emergency handling simulation training device for medium leakage according to claim 2 is characterized in that: The housing (10) comprises: The front panel (101) is a curved plate, the curvature of which matches the curvature of the sector; The side panel (102) is a flat panel, and the side panel (102) and the front panel (101) are sequentially spliced ​​to form the side surface of the fan-shaped body; A top cover (103) and a base (104); The front panel (101), the side panel (102), the top cover (103) and the base (104) form a relatively closed internal space, the upper tank bottom (11) is located at the top of the space, the lower tank top (12) is located at the bottom of the space, and the front panel (101) is provided with a manhole (1011).

4. The emergency handling simulation training device for medium leakage according to claim 3 is characterized in that: A fan-shaped platform (1041) is also provided on the base (104) between the top (12) of the lower tank and the front panel (101), and the entrance of the manhole (1011) is located above the fan-shaped platform (1041).

5. The emergency handling simulation training device for medium leakage according to claim 4 is characterized in that: The fan-shaped platform (1041) is provided with a plurality of liquid leakage holes.

6. The medium leakage emergency handling simulation training device according to any one of claims 1 to 5, characterized in that: The control cabinet (2) contains a gas cylinder (21), a liquid tank (22) and a connecting pipeline (23), wherein the connecting pipeline (23) connects the gas cylinder (21), the liquid tank (22) and is also connected to the upper tank bottom (11) through a connecting hole on the shell (10).

7. The emergency handling simulation training device for medium leakage according to claim 6 is characterized in that: The operating panel of the control cabinet (2) is provided with a training mode button and a training status indicator light.

8. The medium leakage emergency handling simulation training device according to any one of claims 1 to 5, characterized in that: A smoke simulation system and a light simulation system are also provided inside the simulated storage tank (1). The smoke simulation system and the light simulation system are controlled by the control cabinet (2) and are used to simulate smoke and light in a real leakage scene.

9. The medium leakage emergency handling simulation training device according to any one of claims 1 to 5, characterized in that: The control cabinet (2) is used to automatically adjust the flow rate of the medium input into the simulation tank (1) so that the liquid level in the simulation tank (1) is maintained at a fixed height. The principle of the automatic adjustment is: Among them, U(t) represents the amount that needs to be adjusted at time t, K P Indicates the coefficient of proportion P in PID closed-loop control, T I Indicates the coefficient of integral I in PID closed-loop control, T D It represents the coefficient of the differential D in the PID closed-loop control, and err(t) represents the error between time t and time t-1.

10. The emergency handling simulation training device for medium leakage according to claim 9, characterized in that: The control cabinet (2) is also used to identify whether the simulated tank (1) is in a leaking state or a non-leaking state, the principle of which is: The liquid level of the simulated tank (1) is measured in real time by a liquid level meter. The liquid level at time t is: H t =H0+∫U(t) Among them, H0 is the initial liquid level height; The flow rate of the medium input into the simulation tank (1) is measured by a flow meter, and the total flow rate measured by the flow meter is converted into a liquid level height H. f for: H f =F / S Wherein, F is the total volume of the medium flow, and S is the bottom area of ​​the simulated tank (1); When in non-leakage state, H f =0, we have: L=H t -H t-1 When in leakage state, H f ≠0, the leakage is: Among them, H t-1 It is the liquid level height at time t-1 measured by the liquid level gauge.

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